EntityQ846667· pop 32· linked from 410 articleshigh temperature superconductorSign in to savematerials that behave as superconductors at unusually high temperaturesConnectionssuperconductivityEntityGeorg BednorzEntityphase changeEntityBCS theoryEntityCooper pairEntityyttrium barium copper oxideEntityCuprateEntitybismuth strontium calcium copper oxideEntityniobium-tinEntityprogrammable matterEntityironEntityYouTubeConcepthydrogenEntitycopperEntityheliumEntitynitrogenEntityZurichEntitymercuryEntityneonEntityiceEntityCategoriesCorrelated electronsHigh-temperature superconductorsUnsolved problems in physics